import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[][] arr = new int[n][n];
        for (int i = 0; i < n; i++) {
            for(int j = 0; j < n; j++) {
                arr[i][j] = n-Math.abs(i-j);
            }
        }
        for (int i = 0; i < n; i++) {
            for(int j = 0; j < n; j++) {
                System.out.printf("%3d", arr[i][j]);
            }
            System.out.println();
        }
    }
}